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The esophagus transports food from the throat; a tube that carries both air & food; carries air to the trachea or windpipe; and food to the esophagus.
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Mature egg cell (female gamete). Ova develop from immature egg cells called oocytes. a male or female sexual reproductive cell; sperm cell or ovum.
Answer:
report suspected abuse
Explanation:
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Answer:
The skin
Digestive tract
Vagina
Mucous membrane
Explanation:
The skin prevents microbes from entering the body
Digestive tract e.g. stomach acid is a natural defence mechanism
The vagina is acidic and this prevents harmful bacteria from growing with it's own flora.
Mucous membranes e.g. lining of the mouth, nose, eyelids are all defense mechanisms.